Granted Patent
Utility
US 5,363,021 · App. 08/089,821
Massively parallel array cathode
Inventor:
Noel C. MacDonald
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Jul 12, 1993
Inventor
Noel C. MacDonald
Assignee (at issue)
Cornell Research Foundation, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.